The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 31, 2022
Filed:
Mar. 06, 2019
Toshiba Mitsubishi-electric Industrial Systems Corporation, Chuo-ku, JP;
Toshihide Nakano, Chuo-ku, JP;
Abstract
A controller () includes an AC voltage generator () that generates first to Nth AC voltages, a DC voltage generator () that converts the first to Nth AC voltages into first to Nth DC voltages, respectively, and a driver () that turns on and off a switch () based on the first to Nth DC voltages. The AC voltage generator () includes first to Nth isolation transformers (Tto TN). The primary windings of the nth and (n+1)th isolation transformers receive an AC source voltage. The nth to first isolation transformers are sequentially connected. The (n+1)th to Nth isolation transformers are sequentially connected. The first to Nth isolation transformers respectively output the first to Nth AC voltages from their respective secondary windings.